Metal-working machine.



No. 886,572. PATBNTBD MAY 5 1908.A

S. ZIETARSKI.

METAL WORKING MACHINE. APPLIUATIoN FILED MA311, 190e.

3 SHEETS-SHEET 1.

ATTORNEY a 'u 'muzmusvm as sansa smsen-:ml

PATENTED MAY 5, 1908.

S. ZIETARSKI. METAL WORKING MACHINE.

APPLICATION FILED MAR. 21. 1906.

3 SHEETS-SHEET 2.

y l i |NVENT0R-- Y WITNESSES:

ATTORNEY nu: nomas PETERS co., wAsmNcroN, D. c.

No. 886,572. v PATENTED MAY 5, 1908. S. ZIETARSKI.

METAL WORKING MACHINE. APPLIOATION FILED MAR. 21. 19oe.-

3 SHEETS-SHEET 3.

THE Nomzls Pgrrns co., wAsmNGrfm A :v

UNrn sears.

amar rrrcn METAL-WORKING MACHINE.

T0 all whom it may concern:

Be it known that I, STiiNIsLAs ZIETARsKr, a citizen of the UnitedStates, anda resident of Newark, in the county of Essex and State of NewJersey, United States of America, have invented certain new and usefullmprovements in Metal-1V orking Machines, of which the following is aspecification.

My invention relates to a new and useful improvement in metal workingmachines, and its object is to provide an e'llicient apparatus wherebycopper, or other metals may be rolled into various articles ofmanufacture l will describe my invention in the following specificationand point out its novel features in claims.

Referring to the drawings, Figure 1 is a front elevation of my improvedmachine; Fig. 2 is a side elevation, partially in section, with itscenter portion broken away. Fig. 3 is a side elevation, partially insection, of a detail of my machine, and Fig. 4 is a front elevation ofthe parts shown in Fig. 3. Fig. 5 is a front elevation of certain partsof my apparatus showing the method of using it. Fig. 6 shows a detail ofmy machine, and Fig. 7 is a side elevation of a modification of myinvention.

Lilie characters of reference designate corresponding parts in all ofthe figures.

10 designates the frame of my machine. This frame is mounted upon asuitable found ation 11.. The front part of the frame comprises twoupright posts 1,2, 12 which may be built up of angle-irons as shown, orconstructed in any suitable manner. Between these posts and connected tothem and resting upon the foundation 11 is a base 13 which is arrangedto support various parts of the machine, as will be fully describedlater. Near the upper part of the uprights 12, 12 a heavy, stationary,transverse beam 14 is placed. This is securely attached to the uprightsand is arranged to support various parts of the apparatus. The uprightsmay be further connected together', if desired, by a crossbar 15.

Near the rear end of the machine and resting upon the foundation 11 isan upright pedestal 16 which is arranged to support certain bearings.This pedestal 16 is connected to the front portion of the frame by bars17.

20 designates a movable transverse beam which is suspended from thestationary transverse beam 14 by means of screws 21, 21. The upper endsof these screws are pro- Specification of Letters Patent.

Application filed March 21, 1906.

Patented May 5, 1908.

Serial No. 307,208.

lvided with bevel-gears 22, 22 which are se- Y curely attached to thescrews 21, 21, and which have collars 23, 23 which rest upon bosses 18,1S upon the stationary transverse beam 14. The screws 21, 21 extend downand through the movable transverse beam 20 and through nuts 24, 24.These nuts 24, 24 are arranged to be held in recesses 24A, 24A in thetransverse beam 20, said nuts being prevented from rotation but free tomove up and down in said recesses. The uprights 12, 12 are so designedthat they form slides or guideways 'for the movable transverse beam 20,and the latter is provided at its ends with enlarged portions 25, 25which act as guide-shoes and which are varranged to slide up and downover the uprights 12, 12. It may be seen, then, that the transversemovable beam 20 is suspended from the stationary transverse beam 14 bythe screws 21, 21 and that they are firmly supported by the uprights 12,12.

Supported on the top of transverse beam 14, by journal-bearings 19, 19,is a shaft which carries upon it bevel-pinions 27, 27 which mesh withthe bevel-gears 22, 22. One end of the shaft 26 is provided with abevelgear 2S which may be driven by any suitable power, as, for example,by a shaft 29 which may be driven by a pulley 29A connected to asuitable source of power and connected to the bevel-gear 2S throughsuitable gearing. It in ay be seen that whenever the pulley 2.()A isdriven in one direction or the other the screws 21, 21 will be similarlydriven in one direction or the other, and that the movable transversebeam 20 will be raised or lowered thereby. The nuts 24, 24 are arrangedto have considerable play or lost motion in the recesses 24, 24A, sothat while the position of the nuts 24, 24 determines the position ofthe transverse beam 20, the latter beam may be moved up by these nuts byother means, as, for example, the thickness of material placed betweenthe rolls 31 and 41 which will be described later.

30 designates a shaft which extends from the front to the rear of themachine and which carries near its forward end a roll 31 and near itsrear end a gear 32. The rear end of this shaft 30 is supported by asuitable bearing 33 in the pedestal 16, and its forward end is supportedby a bearing 34 which I prefer to make in the manner shown in Fig. 6.This bearing 34 is arranged to be sup; ported by the movable transversebeam 20.

The position of the beam 20 varies, and the movement of the beam willthus have a tendency to put the bearing 34 out of alinement. For thisreason I prefer to arrange the bearing 34 with trunnions 35, 35 whichare supported by the beam 2O and which allows the bearing 34 to alwaysremain in alinement with the shaft 30. The ,parts of bearing 33 aresomewhat loosely fitted together to give this bearing a slightflexibility to allow for the limited movement of the shaft 30.

4() designates another shaft which runs from the rear to the front partof the ma-` chine, and this shaft is supported by a bearing 43 in thepedestal 16 and by a bearing 44 in the base 13 of the front portion ofthe machine. Attached to this shaft 40, near its rear end, is a gear 42which is arranged to mesh with the gear 32, and at its forward end is agear 45 which is arranged to transmit the movement of the shaft 40 to agear 47 through an intermediate gear 46, all of which gears aresupported by the basel3. The gear 47 is rigidly attached to a shaft 48to which is also attached a roll 41. It may be seen, therefore, that themovement of the shaft is transmitted through the arrangement of gearsjust pointed out to the roll 41.

50 designates a countershaft which is supportedby two bearings 51 and 52mounted upon the foundation 11. Mounted upon and rigidly attached tothis countershaft is a gear 53 which is in mesh with the gear 42 uponthe shaft 40.

' countershaft 50.

54 and 55 are pulleys which are arranged to be connected to a suitablesource of power and to be driven at different rates of speed. Thesepulleys are loosely mounted upon the A clutch 56 is provided, however,on this countershaft 5() and arranged to connect the pulley 54 or thepulley 55 to the countershaft 50 and to thereby drive the countershaftat either the speed of the pulley 54 or that of the pulley 55.

It may be readily seen from the preceding description that whenever theclutch is moved t'o connect the countershaft 50 to the source of powerthat the shafts 30 and 4() and their connected rolls 31 and 41 aredriven thereby through the gearing.

The rolls 31 and 41 are made with short lateral dimensions; that is,their thickness is short compared with their diameter. Their rollingsurfaces may be of various shapes but are preferably convex. The resultis that when the rollers are brought together they will touch at apoint.

rlhe front portion of the machine which l have described is arranged tobe entirely open around the portions of the rolling surfaces of therolls which are adjacent to each other. The rolls, thus, are of suchform that there is a free space in all directions about their rollingsurfaces. The portion of the base 13 which supports the roll 41 is alsocut away so as to leave a free space below the adjacent vsurfaces of therolls. lT he whole apparatus is therefore designed to have a clear freespace in all directions about the adjacent portions of the rolls 31 and41. I mean by this and wish to be understood, when I use the expressiona free space in all directions about ortions of the rolling surfaceswhich are a jacent to each other, that there is a free space ofconsiderable dimension for insertion and manipulation of the materialwhich is placed between the rollers so that the latter may be movedforward or vbackward or to either side and may be moved up or down atwill, and l do not, of course, mean that there is an unlimited freespace in all directions, or that there is a free order to prevent thisand to provide means for pressing the upper roll 31 downward anadditional element is provided, preferablyin the form of a hydraulicjack 60, which is arranged to be interposed between the stationarytransverse beam 14 and they movable transverse beam 20, and these beamsare provided with flat surfaces 20A and 14A, respectively, for thepurpose of supporting this hydraulic ack. Of course, a screw-jack ofordinary construction may be used for .this purpose if desired.

This machine is designed and arranged to roll copper or other metalsinto articles ofy manufacture in a novel manner. The metal is first madeinto the form of a circular disk or into any other desired form havingconsiderable thickness and of about the weight of the finished articleof manufacture. The disk is then placed between the rolls 31 and 41 sothat these rolls bear u on the central portion of the disk. The ro lsare then set in motion and are brought together under pressure, and thedisk is guided. so that its central portion will be rolled. down to thedesired thickness. The disk will, o f course, be driven by the rolls andmay then be guided in such a manner that the movement of the disk willbe rotating and that the path of the rolls which the rolls make upon thedisk will be spiral. The rolls will, therefore, iiatten out the centralportion of thedisk at first and the areaof the iiattened portion willcontinually increase as the operation con-L tinues. The disk may beguided byfhand or by any other suitable means, and as it is flattenedout1nay' be moved up or downy into the desired form of the finishedarticle of manufacture.

This machine is particularly adaptable for rolling copper kettles, butit is not limited, of course, to such use. I have described it inconnection with rolling copper, but it may be used with many othermetals and alloys, and it hasbeen found, in fact, that material which isnot capable of being formed or hammered by other processes maybesuccessfully rolled by its use.

The movable transverse beam 20 is provided with a series of recesses oropenings 70, 7 O. These are arranged for the purpose of receiving andsupporting bars, like 71, which are used to support guiding means forthe material as it is rolled. I will now describe these guiding means.

The bar, like 71, is provided with openings and the transverse beam 20is' provided with similar openings 20, A pin 73 is arranged to be placedthrough the openings 20 in the tranvserse beam 20 and one of theopenings 72 in the bar 71 and to thereby hold the bar 71 in a givenposition within the recess 70. A plate 7 3 is pivoted to the end of thebar 71 by a screw 74 which is screwed into the cen ter of the end of thebar 71. The plate 7 3 is so arranged that it may be rotated about thescrew 7 4. A bolt 75, which extends through a slot 76 in the plate 7 3and screws into the bar 71, is provided for the purpose of locking theplate 73 in a desired position. The plate 73 is provided with a straightportion 77 which acts as a guide for a bracket 7 8 which carries at itslower end an antifriction roller 79. This bracket with its roller may bemoved up and down by hand by means of a crank 7 9 and screw 79B. Theseparts are shown clearly in Figs. 3 and Il. In Figs. 1 and 5 two of theseguiding rollers are shown. Fig. .5 shows the manner in which theseguiding rollers may be used, for in this case a disk S0 of metal isshown in the process of being rolled and at the same time being guidedby the rollers 79, 79. By the use of these guiding means articles oflarge dimensions may be successfully formed or manufactured by thismachine. The guiding rollers 79 maybe of any desired shape, and they maysometimes be made with concave surfaces rather than with convex surfacesas shown. Means may also be arranged to guide the material back andforth, if desired, in the direction of the axis of the shaft 30.

In the modification shown in Fig. 7 the frame 1()A is constructedsomewhat differently, and the rolls 33 and 41 are both attached,respectively, to their shafts 30 and 40. In this case power istransmitted to the rollers through a worm Sl and gear S2, and theposition of the roll 31 is regulated by a screw SS which may be raisedor lowered by means of a worm which is arranged to mesh with a gear 84.The gage-carriage S5, which carries a gage-Wheel 86 and the position ofwhich may be adjusted by means of a screw 87, may be provided in thiscase to guide the material when it is placed between the rolls.

The screw S7 may be turned by hand or by' other suitable means, as, forexample, by a friction wheel SS which may be brought into contact withthe shaft 4 0. The operation of this form of my invention is similartothat already described and needs no further description here. y

I have shown more than one form of my invention to show that it iscapable of being made in various ways. It is particularly adaptable foruse in the manufacture of kettles, but I do not wish to limit myself inany way to this specific use as my invention may be used with otherkinds of metals and for forming other kinds of articles of manufacture.It is particularly adaptable for forming circular kettles, but it mayalso be used for manufacturing articles of other forms, as, for example,elliptical dishes or vessels.

The rolls 31 and 41 are usually made 'with convex rolling surfaces asshown in the drawings. This is not necessary, however, and various formsof rolling surfaces may be used in carrying out my invention. Isometimes use one form of rolls for forming one part of the article ofmanufacture and then remove these rolls and put others in their placefor forming other parts ofthe finished article. I' therefore do not wishto limit myself to any specific form of rolls, except that they shouldbe rolls with a comparatively short lateral dimension rather thancylindrical rolls.

What I claim is:

1. A pair of rolls with coperating rolling surfaces, a frame having amain member and a movable member, means constructed and. arranged tomove the movable member in relation to the main member, said rolls beingmounted upon the members, means for driving at least one of the rolls,the main member having a projection thereon extending toward the othermember, the said projection. serving as a support for the roll which ismounted upon the main member.

2. A pair of rolls with coperating rolling surfaces, a shaft for each ofsaid rolls, a frame having a main member and a movable member, meansconstructed and arranged to move the movable member in relation to themain member, said rolls being mounted upon the members, means fordriving the shafts, said main member having a projection thereonextending toward the movable member, the said projection serving as asupport for the roll which is mounted on the main member, and gearsconnecting the roll which is supported by the projection on the mainmember to its shaft.

3. A pair of rolls with coperating rolling surfaces, each of said rollshaving a short lateral dimension, a driving shaft for each of ber, saidrolls being mounted upon the members near the open portion of the frame,means for driving the shafts, the main member having a projectionthereon extending toward the movable member, the said projection servingas a support for the roll which is mounted on the main member, gears-connecting the roll which is supported by the projection on the mainmember to its shaft, and means for forcing the rolls toward each otherunder pressure.

4. A pair of rolls with coperating rolling surfaces, a frame having amain member and a movable member, means constructed and arranged to movethe movable member in. relation to the main member, said rolls beingmounted upon the members, means for driving at least one of the rolls,the main member having a projection thereon extending toward the othermember, said projection serving for a support on the roll which ismounted upon the main member, and means for guiding material between therolls.

5. A pair of rolls with cooperating rolling surfaces, a stationary framehaving a main member and a movable member, a screw in the stationarypart of the frame cooperating with the movable member for adjusting therelative position of the rolls, said rolls being mounted up on themembers, means for driving at least one of the rolls, the main memberhaving a projection thereon extending toward the movable member, thesaid projection serving as a support for the roll which is mounteduponthe main member, and means associated with the stationary portion ofthe `frame and with the movable member by forcing the rolls toward eachother under pressure.

6. A pair of rolls with cooperating rolling surfaces, a shaft for eachof said rolls, a stationary frame having a main member and a movablemember, means constructed and arranged to move the movable member inrelation to the main member, said main member having a projectionthereon extending toward the movable member, a fixed bearing upon saidprojection for one of the shafts, Va slidable pivoted bearing upon themovable member for the other of said shafts, intermeshing gearingattached to the shafts, means for driving the gearing, means associatedwith the stationary portion of the frame and with the movable member forforcing the rolls toward each other under pressure, and adjustablebrackets arranged to guide material between the rolls.

7. A pair of rolls with cooperating rolling surfaces, each of said rollshaving its latera dimension short in relation to Vits diameter, shaftsfor each of said rolls, means for driving atleast one of the shafts, astationary frame constructed to have an open portion, a iixed bearingfor one of the shafts on said frame near its open portion, a movablemember slidably mounted upon the frame, a movable bearing for the othershaft on the movable member, said movable bearing being near the openportion of the frame, a screw for adjusting the relative position of thebearings, a lost motion connection between said screw and the movablemember, said rolls, frame and bearings being arranged to leave a freespace of considerable dimension in all directions about the portion ofthe roll ing surfaces which are adjacent to each other, and additionalmeans for forcing the movable member and the roll which it supportstoward the roll which is supported Jin the stationary frame.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

STANISLAS ZIETARSKI.

Witnesses JosEPH E. CAVANAUGH, ELLA LEECH.

